The Corsair HX1500i and the NZXT C1500 Platinum are objectively tied, as both units share identical specifications across five of the seven measured categories. The Corsair HX1500i holds a marginal lead in MSRP, offering an 8% advantage in that specific metric. Conversely, the NZXT C1500 Platinum secures a 3% advantage regarding its ATX version specification. Because neither power supply demonstrates a clear technical superiority, the choice between these two units depends entirely on your specific budgetary and compatibility requirements.

Choose the Corsair HX1500i if you prioritize the 8% advantage in MSRP to minimize your initial expenditure. Alternatively, select the NZXT C1500 Platinum if your build requires the 3% advantage provided by its specific ATX version. Since both components perform identically across the majority of measured fields, your decision should be guided strictly by these two distinct advantages rather than overall performance differences.